Eachine Mq-135 Car Air Quality Sensor Hazardous Harmful Gases Detection

DC 5V MQ-135 Car Air Quality Sensor Hazardous Harmful Gases Detection Description Color: Like the picture show Quantity: 1 pc Size(LxWxH): (40x22x25)mm / 1.57"x0.86"x0.98" Voltage: DC 5V The main chip: LM393, MQ135 gas sensing probe Features: 1.Rapid response recovery characteristics 2.Has a long life and reliable stability 3.Sulfide, benzene Department of steam, smoke and other harmful gases with high sensitivity 4.Signal output indicator instructions 5.Dual signal output (analog output, and TTL level output) TTL output valid signal is low;(output low signal light, which can be accessed microcontroller IO port) Analog output with increasing concentration,the higher the concentration,the higher the voltage; Applications: A hazardous gas detection apparatus for the family and the environment. Suitable for ammonia,aromatic compounds,sulfur,benzene vapor,smoke and other gases harmful gas detection. Gas-sensitive element test concentration range: 10 to 1000ppm Package includes: 1 x Air Quality Sensor